Linux MCQs with answers Page - 170

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Q. What does the 'uptime' command display?

  • (A) System load average
  • (B) Time since last reboot
  • (C) Current time
  • (D) All of the above

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Q. Which command is used to display file contents in hexadecimal and ASCII format?

  • (A) xxd
  • (B) hexdump
  • (C) od
  • (D) All of the above

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Q. Which environment variable stores the current user's home directory?

  • (A) $DIR
  • (B) $ROOT
  • (C) $HOME
  • (D) $USERDIR

D

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Q. Which of the following commands is used to print the calendar in Linux?

  • (A) date
  • (B) cal
  • (C) calendar
  • (D) clock

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Q. Which command is used to extract .tar.bz2 files?

  • (A) tar -xvf file.tar.bz2
  • (B) tar -xvjf file.tar.bz2
  • (C) unzip file.tar.bz2
  • (D) bz2 -x file.tar.bz2

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Q. Which of the following commands is used to install a package in Debian-based systems?

  • (A) yum install
  • (B) apt install
  • (C) dnf install
  • (D) pkg install

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Q. Which command shows the routing table in Linux?

  • (A) route
  • (B) ip route
  • (C) netstat -r
  • (D) All of the above

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Q. Which of the following is not a valid file permission?

  • (A) rwx
  • (B) rw-
  • (C) r--
  • (D) wxx

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Q. What does 'uname -a' display?

  • (A) Only the kernel name
  • (B) Only the hostname
  • (C) All system information
  • (D) System uptime

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Q. Which command is used to check open ports and listening services?

  • (A) lsof -i
  • (B) netstat -tuln
  • (C) ss -tuln
  • (D) All of the above

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